Here is the full list of all 23 Walhall achievements.
You're the real champion!
Thank you for playing!
REAL blue hedgehog!
Button 2 is more useful now
As if it wasn't hard enough
Babies make you tougher
Copying enemy movements
One after the other!
You're gonna love 'em
A new challenger appears!
He lost his drill for...
Deceiving death itself
Like a blue hedgehog!
Gotta shoot fast
It gets spiky
You're feeling tough
At last you can watch it
Take me seriously!
I'm gonna catch you!
He also wants to hit
Helps hitting your target
Your actions are under control
Speed up!